A heat wave has prompted officials to issue widespread heat advisories and extreme heat warnings across the U.S. this week.

The National Weather Service office in Mobile, Alabama, issued a heat advisory in Escambia, Santa Rosa and Okaloosa counties ...

Brevard County experienced a heat advisory with a heat index as high as 112 degrees Fahrenheit on July 21. While temperatures ...

A heat advisory for Florida's Treasure Coast is in effect from noon through 6 p.m., with heat index values from 109 to 112 possible.

Even without reaching heat wave levels, sustained high temperatures may contribute to a litany of health issues.

Extreme heat events increasingly pose significant global health risks, especially in vulnerable and under-resourced regions.

The National Weather Service has issued heat advisories across Southeast Georgia, as well as Northeast and Central Florida.

With "feels like" temperatures expected to be in the triple digits on Monday, the National Weather Service has issued a heat ...